Forge-tuyere



Patented. May 14, 1889.

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N PETERS. Fhowumgm h UNITED STATES PATENT OFFICE.

WILLIAM H. SHANK, OF HUNTINGTON, INDIANA.

FORGE-TUYERE.

SPECIFICATION forming part of Letters Patent NO. 403,149, dated May 14, 1889.

Application filed March 18, 1889- Serial No. 303,732. (No model.)

To all whom it may concern.-

Be it known that I, WVILLIAM H. SHANK, a citizen of the United States, residing at Huntington, in the county of Huntington and State of Indiana, have invented new and useful Improvements in Forge-Tuyeres, of which the following is a specification.

My invention relates to an improvement in forge-tuyeres; and it consists in the construction and arrangement of the parts of the same, more fully hereinafter described and claimed.

The object of my invention is to provide a tuyere for blacksmith-forges which will concent-rate the blast in a manner to prevent the displacement of the fuel against which the blast impinges and cause a more rapid and perfect ignition ofthe same. I attain this object by the construction illustrated in the accompanying drawings, wherein Figure 1 represents a tuyere-iron with the grate in place; Fig. 2, a bottom plan View of the grate; Fig. 3, a top plan of the grate, and Fig. 4 a longitudinal vertical section of the grate.

In the drawings, A represents the tuyere iron or tube, preferably straight, having a valve, 0, in its bottom, whereby the accumulated cinders and dirt may be discharged. The air-pipe B, leading from the bellows, enters the tuyere iron or pipe at about its center and is curved to deflect the blast upward. On the top of pipe A is formed a disk or rest, 0, having a vertical flange, C, on its edge, and through which the pipe A passes at its center. To effectually distribute the blast to increase the heat by securing a more perfect combustion of the fuel, I place on the disk 0 a grate, D, the construction of which is fully shown in Figs. 2, 3, and 4. This grate has a concaved upper surface and a circumferential flange, d, on its lower edge, which fits within the flange on the disk, the upper edge of which contacts with the shoulder d on the outside of the grate, thereby preventing the grate from resting on the disk, and forming a chamber or space between the same into which the air is discharged from the pipe A. The inner wall of the grate is inclined inward toward the center, the inclination increasing at its upper end,where it terminates in an opening.

In the center of the grate is rigidly held a circular ring, F, having an inclined inner face and an outer face inclined in the opposite direction to about midway its length, at which point it inclines inwardly toward the center. This ring is supported and held in place by cross-barsf extending from the lower edge of the flange d to the lower edge of the ring. These supports are beveled to prevent obstruction to the upward progress of the blast.

Supported in the upper end of the ring F is a circular deflector, G, having a conicalshaped opening in its center and an outwardly-diverging outer wall. It is supported in place by beveled arms H, secured to the ring F. By this formation it will be seen that a circular opening, as I, is formed in the upper surface, while a central opening, K, and segmental openings L are formed inside the opening I. The end of pipe A is directly below the center of the grate and the blast is discharged into all the divisions thereof, that portion striking the outer walls being thrown inwardly toward the center, while the portion passing through the ring F is thrown slightly out, and the blast striking the central opening is thrown straight up, thereby dividing the blast so that it may be concentrated in a manner to prevent the displacement of the coal, and yet produce a perfect ignition of the same.

I am aware that many minor changes in the construction and arrangement of the parts of my device can be made and substituted for those shown and described withoutin the least departing from. the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a forgetuyere, the combination, with the tuyere-pipe and the blast-pipe leading into the same, of the flanged disk on the tuyere-pipe and a grate for dividing the blast on said disk, substantially as described.

2. The grate, as D, consisting of the inclined outer portion, the ring F, and deflector G, having inclined Walls and united with each In testimony whereof I aflix my signature in TO other by supports, substantially as described. presence of two Witnesses.

3. In a forge-tnyere, the combination of the tuyere-pipe A, having the slide a in its WILLIAM H. SHANK. 5 bottom, the blast-pipe B, leading into the pipe A, the disk on the pipe A, and the grate, WVit-nesses:

as D, on the disk having a series of inclined R. A. KAUFMAN, divisional rings 01' bars for deflecting the JOHN MILLER.

blast, substantially as described. 

